package com.buercorp.wangyu.common;

public class ArrayExchange {
    public static void main(String[] args) {
        // 定义一个数组 1 2 3 4 5
        // 交换后 5 4 3 2 1
        int[] arr = {1, 2, 3, 4, 5};
        for (int i = 0, j = arr.length - 1; i < j; i++, j--) {
            int temp = arr[i];
            arr[i] = arr[j];
            arr[j] = temp;
        }
        for (int i = 0; i < arr.length; i++) {
            System.out.print(arr[i]);
        }
    }
}
